Study on the disinfection effect of chlorine dioxide disinfectant (ClO
Chlorine Compounds
/ pharmacology
Oxides
/ pharmacology
Biofilms
/ drug effects
Escherichia coli
/ drug effects
Humans
Staphylococcus aureus
/ drug effects
Disinfection
/ methods
Dental Equipment
/ microbiology
Disinfectants
/ pharmacology
Dental Disinfectants
/ pharmacology
Fibroblasts
/ drug effects
Bacterial Load
/ drug effects
In Vitro Techniques
Antimicrobial
Chlorine dioxide
Cytotoxicity
Dental equipment waterlines
Disinfectant
Metal corrosion
Journal
BMC oral health
ISSN: 1472-6831
Titre abrégé: BMC Oral Health
Pays: England
ID NLM: 101088684
Informations de publication
Date de publication:
01 Jun 2024
01 Jun 2024
Historique:
received:
01
02
2024
accepted:
20
05
2024
medline:
2
6
2024
pubmed:
2
6
2024
entrez:
2
6
2024
Statut:
epublish
Résumé
Ensuring the safety of dental unit waterlines (DUWLs) has become a pivotal issue in dental care practices, focusing on the health implications for both patients and healthcare providers. The inherent structure and usage conditions of DUWLs contribute to the risk of biofilm formation and bacterial growth, highlighting the need for effective disinfection solutions.The quest for a disinfection method that is both safe for clinical use and effective against pathogens such as Staphylococcus aureus and Escherichia coli in DUWLs underscores the urgency of this research. Chlorine dioxide disinfectants at concentrations of 5, 20, and 80 mg/L were used to treat biofilms of S. aureus and E. coli cultured in DUWLs. The disinfection effectiveness was assessed through bacterial counts and culturing. Simultaneously, human skin fibroblast cells were treated with the disinfectant to observe changes in cell morphology and cytotoxicity. Additionally, the study included corrosion tests on various metals (carbon steel, brass, stainless steel, aluminum, etc.). Experimental results showed that chlorine dioxide disinfectants at concentrations of 20 mg/L and 80 mg/L significantly reduced the bacterial count of S. aureus and E. coli, indicating effective disinfection. In terms of cytotoxicity, higher concentrations were more harmful to cellular safety, but even at 80 mg/L, the cytotoxicity of chlorine dioxide remained within controllable limits. Corrosion tests revealed that chlorine dioxide disinfectants had a certain corrosive effect on carbon steel and brass, and the degree of corrosion increased with the concentration of the disinfectant. After thorough research, we recommend using chlorine dioxide disinfectant at a concentration of 20 mg/L for significantly reducing bacterial biofilms in dental unit waterlines (DUWLs). This concentration also ensures satisfactory cell safety and metal corrosion resistance.
Sections du résumé
BACKGROUND
BACKGROUND
Ensuring the safety of dental unit waterlines (DUWLs) has become a pivotal issue in dental care practices, focusing on the health implications for both patients and healthcare providers. The inherent structure and usage conditions of DUWLs contribute to the risk of biofilm formation and bacterial growth, highlighting the need for effective disinfection solutions.The quest for a disinfection method that is both safe for clinical use and effective against pathogens such as Staphylococcus aureus and Escherichia coli in DUWLs underscores the urgency of this research.
MATERIALS
METHODS
Chlorine dioxide disinfectants at concentrations of 5, 20, and 80 mg/L were used to treat biofilms of S. aureus and E. coli cultured in DUWLs. The disinfection effectiveness was assessed through bacterial counts and culturing. Simultaneously, human skin fibroblast cells were treated with the disinfectant to observe changes in cell morphology and cytotoxicity. Additionally, the study included corrosion tests on various metals (carbon steel, brass, stainless steel, aluminum, etc.).
RESULTS
RESULTS
Experimental results showed that chlorine dioxide disinfectants at concentrations of 20 mg/L and 80 mg/L significantly reduced the bacterial count of S. aureus and E. coli, indicating effective disinfection. In terms of cytotoxicity, higher concentrations were more harmful to cellular safety, but even at 80 mg/L, the cytotoxicity of chlorine dioxide remained within controllable limits. Corrosion tests revealed that chlorine dioxide disinfectants had a certain corrosive effect on carbon steel and brass, and the degree of corrosion increased with the concentration of the disinfectant.
CONCLUSION
CONCLUSIONS
After thorough research, we recommend using chlorine dioxide disinfectant at a concentration of 20 mg/L for significantly reducing bacterial biofilms in dental unit waterlines (DUWLs). This concentration also ensures satisfactory cell safety and metal corrosion resistance.
Identifiants
pubmed: 38824549
doi: 10.1186/s12903-024-04391-7
pii: 10.1186/s12903-024-04391-7
doi:
Substances chimiques
Chlorine Compounds
0
chlorine dioxide
8061YMS4RM
Oxides
0
Disinfectants
0
Dental Disinfectants
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
648Subventions
Organisme : Zhejiang Provincial Xinmiao Talents Program
ID : 2023R410033
Informations de copyright
© 2024. The Author(s).
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